This publication summarizes the findings of several initiatives in studying the health aspects of secondary agriculture teachers in the United States. The study was specifically conducted to determine the health experiences of secondary agriculture teachers, the health problems that cause them to miss work, their health care concerns, personal variables related to health, and the interaction between health and teacher efficacy. A literature search found most previous studies concentrating on illness rather than wellness, as well as some support for a relationship between teacher absence and lack of efficacy. A questionnaire was developed and administered to a sample of 502 vocational agriculture teachers selected from the 12,053 names listed in the 1987 "Agriculture Teachers Directory," with 303 usable questionnaires returned. Some of the findings are the following: (1) teachers most frequently experienced colds, job stress, fatigue, influenza, headaches, personal stress, teeth problems, eyesight problems, respiratory problems, and depression; (2) teachers averaged fewer than 4 days of absence per year; (3) teachers missed school most for communicable disease or surgery, not for the more frequently reported health problems that tended to be in the emotional or psychosomatic categories; (4) health concerns included job stress, laboratory injuries, circulatory problems, eyesight problems, personal stress, and hearing loss; and (5) although a causative relationship was not found between teacher efficacy and health, the most effective teachers missed fewer school days per year than less effective teachers. (Includes the questionnaire and 34 references.) (KC)